20154324005 has 16 divisors (see below), whose sum is σ = 25471195200. Its totient is φ = 15266995200.

The previous prime is 20154323989. The next prime is 20154324017. The reversal of 20154324005 is 50042345102.

It is a happy number.

It is not a de Polignac number, because 20154324005 - 2⁴ = 20154323989 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134405 + ... + 241605.

It is an arithmetic number, because the mean of its divisors is an integer number (1591949700).

Almost surely, 2^20154324005 is an apocalyptic number.

It is an amenable number.

20154324005 is a deficient number, since it is larger than the sum of its proper divisors (5316871195).

20154324005 is a wasteful number, since it uses less digits than its factorization.

20154324005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109204.

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 20154324005 its reverse (50042345102), we get a palindrome (70196669107).

The spelling of 20154324005 in words is "twenty billion, one hundred fifty-four million, three hundred twenty-four thousand, five".